ubuntu 10.12’s unity 3d desktop performes rather slow on my QuadCore Xeon OSX 10.6.8, so i thought i try to improve performance by properly installing the guest additions:

open a terminal in ubuntu:

1. optional, but i recommend it because copy & pasting commands is just much more comfortable than typo’s: install ssh server:

apt-get install ssh


-> look for 192.168…. this is your ip

now open a terminal on the unix-compatible-host: ssh user@192.168….

2. get linux kernel headers (sources?)

apt-get install linux-headers-3.5.0-25-generic

3. download guest additions

sudo apt-get install virtualbox-guest-additions-iso

4. mount iso

sudo mount -o loop /usr/share/virtualbox/VBoxGuestAdditions.iso /media/cdrom0

5. install guest additions

sudo /media/developer/VBOXADDITIONS_4.2.10_84104/VBoxLinuxAdditions.run

you should see something like this:
Verifying archive integrity… All good.
Uncompressing VirtualBox 4.2.10 Guest Additions for Linux……….
VirtualBox Guest Additions installer
Removing installed version 4.2.10 of VirtualBox Guest Additions…
Removing existing VirtualBox DKMS kernel modules …done.
Removing existing VirtualBox non-DKMS kernel modules …done.
Building the VirtualBox Guest Additions kernel modules
Doing non-kernel setup of the Guest Additions …done.
Starting the VirtualBox Guest Additions …done.
Installing the Window System drivers
Installing X.Org Server 1.13 modules …done.
Setting up the Window System to use the Guest Additions …done.
You may need to restart the hal service and the Window System (or just restart
the guest system) to enable the Guest Additions.

Installing graphics libraries and desktop services components …done.


innotek is a software company located in Stuttgart, in Southern Germany. Since its creation in 1992, a team of international software specialists has been focusing entirely on the development of high-tech system software. We have been involved in the development of PC virtualization technology from the very beginning and staff Europe’s largest and most experienced team of PC virtualization software experts.

innotek operates its business at the company headquarters in Stuttgart, Germany as well as in Dresden, Berlin and the Russian Federation.

innotek GmbH was acquired by  Sun Microsystems Inc. in February 2008 which in turn got acquired by  Oracle Corporation in January 2010.

Contact details:
innotek GmbH
Werkstrasse 24
71384 Weinstadt

E-Mail: info@innotek.de
Telephone: +49 (0) 7151 60405-0
Fax: +49 (0) 7151 60405-111

innotek is incorpored in Weinstadt, Germany (Register court: Amtsgericht Stuttgart, HRB 264652, VAT ID: DE 812 992 021, Managing Director: Thomas Schröder).